A guy once said to me at a bar that I was gorgeous. What did he imply?

I don't get why you think that might imply anything. Why do you not assume that he just meant exactly what he said?

That he was drunk and desperate for sex.

You want to have it in neon that he fancies you or he likes you?

Men are simple creatures, he simple meant you're gorgeous, if i wanted someone to feel sorry for me i would say it in sign language

That you're gorgeous and wants to sleep with you.

that he thinks youre gorgeous. don't overthink